| 一种用于非致冷红外焦平面读出电路的带隙基准源 |
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| 引用本文： | 李凯,周云,蒋亚东.一种用于非致冷红外焦平面读出电路的带隙基准源[J].红外,2011,32(9):1-4. |
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| 作者姓名： | 李凯 周云 蒋亚东 |
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| 作者单位： | 电子科技大学电子薄膜与集成器件国家重点实验室,四川成都,610054 |
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| 基金项目： | 国家自然科学基金项目（面上项目，重点项目，重大项目）（编号：61021061）、电子科技大学富通翱翔计划科研基金（编号：FTAX201013） |
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| 摘 要： | 设计了一种用于新型非致冷红外焦平面阵列读出电路的低温漂低压带隙基准电路.提出了同时产生带隙基准电压源和基准电流源的技术.通过改进带隙基准电路中的带隙负载结构及基准核心电路,可以分别对基准电压和基准电流进行温度补偿.在0.5μm CMOS N阱工艺条件下,采用Spectre软件进行了模拟验证.仿真结果表明,在3.3 V条...
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| 关 键 词： | 基准电压 基准电流 带隙负载结构 温度系数 电源抑制比 |
| 收稿时间： | 2011/7/26 0:00:00 |
| 修稿时间： | 2011/7/26 0:00:00 |
A Bandgap Reference for Uncooled IRFPA Readout Circuits |
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| Li Kai,Zhou Yun and Jiang Yadong.A Bandgap Reference for Uncooled IRFPA Readout Circuits[J].Infrared,2011,32(9):1-4. |
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| Authors: | Li Kai Zhou Yun and Jiang Yadong |
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| Affiliation: | UESTC,UESTC,UESTC |
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| Abstract: | A low temperature drift and low voltage bandgap reference is designed for a new uncooled infrared focal plane array(IRFPA) readout circuit.The technique which can be used to provide both reference voltage output and reference current output is proposed.By modifying the bandgap load and reference core circuit in the bandgap reference circuit,the reference voltage and current can be compensated for temperature respectively.When using a 0.5μm N well CMOS technology,simulation is carried out by using the Spectre software.The result shows that the temperature coefficients of the voltage output and the current output are 35.6 ppm/℃and 37.8 ppm/℃respectively in the temperature range from -20℃to 100℃at 3.3 V.The power-supply rejection ratio(PSRR) is -68 dB at DC.The circuit can operate in the range from 2.2 V to 4.5 V. |
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| Keywords: | reference voltage reference current bandgap load temperature coefficient PSRR |
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